
 html, body, div, span, applet, object, iframe,
 h1, h2, h3, h4, h5, h6, p, blockquote, pre,
 a, abbr, acronym, address, big, cite, code,
 del, dfn, em, img, ins, kbd, q, s, samp,
 small, strike, strong, sub, sup, tt, var,
 b, u, i, center,
 dl, dt, dd, ol, ul, li,
 fieldset, form, label, legend,
 table, caption, tbody, tfoot, thead, tr, th, td,
 article, aside, canvas, details, embed,
 figure, figcaption, footer, header,
 menu, nav, output, ruby, section, summary,
 time, mark, audio, video, input {
     margin: 0;
     padding: 0;
     border: 0;
     font-size: 100%;
     font-weight: normal;
     vertical-align: baseline;
     box-sizing: border-box;
 }
 
 /* HTML5 display-role reset for older browsers */
//  article, aside, details, figcaption, figure,
//  footer, header, menu, nav, section {
//      display: block;
//  }
 
//  body {
//      line-height: 1;
//      font-size: 14px;
//  }
 
//  blockquote, q {
//      quotes: none;
//  }
 
//  blockquote:before, blockquote:after,
//  q:before, q:after {
//      content: none;
//  }
 
 table {
     border-collapse: collapse;
     border-spacing: 0;
 }
 
 /* custom */
 a {
     color: #7e8c8d;
     text-decoration: none;
     -webkit-backface-visibility: hidden;
 }
 
 li {
     list-style: none;
 }
 
//  ::-webkit-scrollbar {
//      width: 5px;
//      height: 5px;
//  }
 
 ::-webkit-scrollbar-track-piece {
     background-color: rgba(0, 0, 0, 0.2);
     -webkit-border-radius: 6px;
 }
 
 ::-webkit-scrollbar-thumb:vertical {
     height: 5px;
     background-color: rgba(125, 125, 125, 0.7);
     -webkit-border-radius: 6px;
 }
 
 ::-webkit-scrollbar-thumb:horizontal {
     width: 5px;
     background-color: rgba(125, 125, 125, 0.7);
     -webkit-border-radius: 6px;
 }
 
 html, body {
     width: 100%;
 }
 
 body {
     -webkit-text-size-adjust: none;
     -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
 }

.clearfix::before,
.clearfix::after{
    content: "";
    display: block;
    height: 0;
    line-height: 0px;
    clear: both;
    visibility: hidden;
}
.fl {
    float: left;
}
.fr {
    float: right;
}

.br {
    border-right: 1px solid #ccc;
}
.bl {
    border-left: 1px solid #ccc;
}
.bt {
    border-top: 1px solid #ccc;
}
.bb {
    border-bottom: 1px solid #ccc;
}